AMD Radeon 7850 1GB Sapphire Low FPS Issues

[Erudes]

Hello people! I really don't know what else to do, I have tried anything, I'm gonna explain to you from the beginning. One month ago I built a RIG to play:
Motherboard Asus M4A88TD-M
AMD Phenom II x4 955
8GB DDR3 Kingston RAM
1TB WD Caviar Black
AMD Radeon 7750 1GB GDDR5
PSU Antec 620W Pro
Windows 8 Pro 64 Bits
Latest Drivers from aything
The thing is there was low FPS in ALL GAMES, including Mortal Kombat Komplete Edition at 720p, AC4 and CoD Ghosts. When I say low FPS I mean really low, 15 FPS at gameplay and low settings.
I updated my Mobo BIOS, and the problem was solved, nevertheless it started to appear again.
Two days ago, I changed my video card to AMD Radeon 7850 1GB GDDR5, and STILL problems persists, I can't play decently any game, I uninstalled the drivers and re-installed even the beta versions, and I cannot even fight on Mortal Kombat whis is depressing.
DirectX is also up-to-date. What else should I try to do? Please help, I'm going crazy with this

 

[krumme]

First you have to find where the problem is, before you try to correct it in blindness:

When gaming on high res at high settings what does performance for the cpu say in the task manager?
Try using cpuid to see how your cpu behaves - to see its working on full frequency.

Edit: an 7850 1g can easily play bf4 at high at 900p and maintain 60fps.

 

[Erudes]

I will check that out as soon as I get home while playing Mortal Kombat! Thanks for the reply!

 

[nwo]

Sounds like something is eating up your CPU and/or HDD utilization since you can't get more than 15 fps in most games.

I would say run a spyware/malware/antivirus scan and go from there.

 

[Yuriman]

Also checking the clocks of your CPU and video card while gaming could be informative. It's possible that one or the other is throttling, for whatever reason.

 

[Erudes]

Thanks for the replies everybody, the malware/virus scan I already did and nothing was found. I checked the GPU while running Mortal Kombat and everything was fine, I will post an image later just in case.

On the other hand I have not checked the CPU frequencies while on game, maybe it is throttled, I'll check task manager for disk utilization as well.

 

[Stuka87]

Thanks for the replies everybody, the malware/virus scan I already did and nothing was found. I checked the GPU while running Mortal Kombat and everything was fine, I will post an image later just in case.

On the other hand I have not checked the CPU frequencies while on game, maybe it is throttled, I'll check task manager for disk utilization as well.

What do you mean everything was "fine"?

Was GPU utilization at 100%? If not, it means your CPU is the bottleneck. And it would not surprise me with that CPU, unless it is heavily over clocked. Even my 965BE at 4+ GHz is a big CPU bottleneck in most games.

 

[Erudes]

Well I managed to solve it, I reset my BIOS settings to default and everything runs good now, I really don't know what did I touch to mess it up.

Anyway here some images:

AC High FPS

http://i43.tinypic.com/nqd5ba.jpg

AC Low FPS

http://i40.tinypic.com/v5fzbn.jpg

Idle FPS

http://i44.tinypic.com/24lsymb.jpg

Mortal Kombat High FPS

http://i39.tinypic.com/dxd3d0.jpg

Mortal Kombat Low FPS

http://i42.tinypic.com/291gy2b.jpg

Tomb Raider High FPS

http://i44.tinypic.com/2q2iozn.jpg

Tomb Raider High FPS 2

http://i41.tinypic.com/sl7nnp.jpg

a) Is it normal Tomb Raider uses 99% of GPU?

b) Is it normal AC4 Black Flag it's locked at 30FPS?

Thank you very much for your time!

 

[Stuka87]

AC4 is locked at 30fps on console and PC.

Technically, EVERY game should use 100% GPU. If it doesn't, it means your CPU is too slow. And as I said above, if your CPU is not overclocked, its too slow.

 

[Erudes]

Maybe if the CPU is powerful enough and the game isn't very demanding then the video card is not forced to work at 100% load. I mean, that makes sense, doesn't it?

 

[Stuka87]

Maybe if the CPU is powerful enough and the game isn't very demanding then the video card is not forced to work at 100% load. I mean, that makes sense, doesn't it?

Only two reasons a GPU should not be at 100% load. The CPU is too slow to feed it, or vsync is enabled. If vsync is enabled, and the GPU (and PU) are fast enough to sustain that FPS, then GPU load (And possibly CPU load) will be lower than 100%.

But if vsync is off, the GPU will try to run the game as fast as possible. If the CPU and GPU are fast enough to let the game run at 500fps, it will.